@hobie_smithI'm not sure what you are trying to accomplish here. All the side edges are already Rips in your model.

Sheet metal operations would not work on sheet metal model after "Blechmodell fertigstellen" feature. Please roll it back then you should be able to modify stile of rips or convert them to bends using sheet metal table

It does not matter how I do it. I can not get this window anymore. I do not want to change a connection but the style. The picture is from the mobile browser because I'm on the go, so it's also on the PC.